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ECRFV2 Dual Jammer — Simultaneous Dual-Frequency RF Jamming

Lightweight jamming firmware for Evil Crow RF V2 that uses both CC1101 modules simultaneously to jam two different sub-GHz frequencies at once, with simple two-button physical controls.

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Boards:ESP32
Firmware:Arduino
Use Cases:Security & SurveillanceEducation
GitHub

Overview

ECRFV2 Dual Jammer by R4ms3s3 is a focused, single-purpose firmware for the Evil Crow RF V2 that leverages both CC1101 radio modules to jam two different frequencies simultaneously. It provides a stable, no-frills jamming tool controlled entirely through the device's physical buttons.

Features

  • Dual-frequency jamming — jams two separate sub-GHz frequencies at the same time using both CC1101 modules
  • Hardcoded configuration — frequency and power parameters are set directly in the Arduino source code before flashing
  • Physical button control — Button 1 (closest to USB) starts jamming on both frequencies, Button 2 stops all jamming
  • Stable operation — designed for continuous operation limited only by battery life
  • Any CC1101 frequency — supports jamming on any frequency within the CC1101's range (300-928 MHz)

Setup

  1. Open the Arduino sketch and modify the hardcoded frequency and power parameters for each CC1101 module
  2. Install the Smart-RC-CC101-driver-lib library
  3. Flash the firmware to your Evil Crow RF V2
  4. Press Button 1 to start dual-frequency jamming

Important Notes

  • The default settings are general-purpose and may not provide optimal results for specific frequencies — tune the parameters for your target band
  • CC1101 modules have limited output power; external amplification may be needed for extended range
  • This firmware is intended for authorized security testing and educational purposes only

Links

Resources

GitHub Repository

Source code & project files